From MP3Car.com Wiki

[edit] Alpine PXA-H700/701 and RUX-C700/701 - MSRP: $550 and ???

[edit] Price: $550 - $800

[edit] Features

[edit] Rockford Fosgate 360.1 and 360.2

[edit] Price

[edit] Features

[edit] Zapco DSP6

[edit] Price

[edit] Features

[edit] Behringer DQX2496

[edit] Price

[edit] Features

[edit] Audiocontrol DQXS - MSRP: ???

[edit] Price

[edit] Features

Six Channel Three-way Crossover Six Input and Eight Output Channels One-third Octave and One Half Octave Equalization Controls per Channel Two Parametric Equalizers per Channel 142 Total Equalization Filters Outputs for Front Highpass, Front Bandpass, Rear Highpass, and Subwoofer Outputs 24dB/octave Linkwitz Riley Alignment Crossover Slopes Eight User Programmable Memories Utilizes an Audio Enhanced DSP Output Level Controls Input for Optional DDC (Digital Dash Control) Audiocontrol DQX - MSRP: ???

Digital Car Audio Equalizer and Crossover Two Input and Six Output Channels Thirty Graphic Equalization Controls per Channel Two Fully Adjustable Parametric Equalization Controls per Channel Three-way Digital Electronic Crossover 24 bit Digital Audio Processing 8 User-Programmable Memory Settings

[edit] Clarion DVC920 and DVH940 - MSRP: $150 and $250

[edit] Clarion ADCS1

Tuner - 18 FM/6 AM Station category search tuning 60 station memory call letter display Magi-Tune(tm)+FM CD - Full logic CD controls Programmable play 99 tracks Track music search FF/FB Audible FF/FB Last position memory CD changer control - Programmable play 99 tracks 100 CD title memory display Direct disc select Multi-changer control capability Track music search FF/FB Audible FF/FB DSP - 5 preset sound balance memories 5 sound field memories 7 adjustable sound field parameters EQ - 4 channel, 6 band digital parametric EQ Selectable center frequencies, 31 points, 1/3 octave Adjustable Q X-over - 14 channel digital crossover Selectable crossover points Selectable crossover slopes 12dB, 24dB, 36dB/octave Phase selectors Adjustable gain controls Independent adjustable time alignments 5 preset memories Audio - Digital audio controls Digital fiber optic connections 20 bit 4 channel D/A converters 8 times oversampling General - Switchable illumination User infrared remote control Programming infrared remote control RS-232 port for parameter programming from computer

[edit] Audiobahn ADD51T - MSRP: ???

1/2 Din 5.1 Dolby® digital, DTS® surround sound decoder with remote DSP — PCM, Dolby® Digital (AC-3, DTS®), Pro Logic® II, Pro Logic®, Movie, Music Two Digital Inputs — Optical and Coaxial Three Analog Inputs — RCA Six 9v Audio Outputs (LF, RF, C, LR, RR, SUB) Two composite video signal inputs One 2.2 volt composite video signal output Delay functions Sound field effects Dimensions: 7/8" (H) x 7" (W) x 5 1/8" (L) Sherwood X-DTS80 - MSRP: ??? IF you can find this unit, it's another option. It's no longer being made. At the time of this posting, I found one on e-Bay going for $40. New in the box. It's not a super high quality unit, but it's deffinately an option for some.

[edit] Pioneer DEQ-P8000 - MSRP: $500

[edit] Pioneer DEX-P9 and DEQ-P9

[edit] Pioneer ODR system

[edit] Panasonic CY-AC300 - MSRP: ???

[edit] Alto UCS Pro - MSRP: ???

[edit] Zapco DEQ P8000 - MSRP: $500

5.1-Channel Digital Audio Processor Built-in Dolby® Digital / DTS™ / Dolby® Pro Logic® II* / Linear PCM Decoder 24-bit 6-Channel DAC & 6-Channel DSP Digital Sound Control (6 modes) Time Alignment & Speaker Set-up Mode 4.1-Channel Down Mixing Multi-Channel AUTO-EQ Setting (Mic Included) Multi-Channel AUTO-Time Alignment (0 ~ 200inch) MOSFET50 (50W x 5-Channel High Power) 6-channel Hi-Volt Preouts (Front L&R, Rear L&R, Center, Subwoofer) (5V) High-Pass Crossover: 63/80/100/125/160/200Hz Subwoofer Crossover (LPF): 63/80/100/125/160/200Hz, +/-10dB 3-Band, 3-Channel Parametric EQ (Center, Front, Rear) with 7 presets (5 fixed, 2 custom) Listening Position Selector Source Level Adjuster (SLA) 2 Optical Inputs (1 for DVD main units and 1 for DVD source players) IP-Bus Input/Output 1-Day Back-up Memory Optional Center Channel Speaker (TS-CX7) is available Optional Multi-Channel Controller (AXM-P8000) required for use with AVIC-N1 and AVX-P8DVD Eclipse 39011 - MSRP: ???

Surround Processor Maximum Output Level: 7.7 volts Frequency Response (20 to 20,000 Hz, referenced to 1,000 Hz): +0.0, -1.2 dB Channel Seperation: at 1,000 Hz, 72.8 dB; at 20,000 Hz, 76.3 dB Dynamic Range (A-weighted, referenced to 0 dB): 99.9 dB S/N Ratio (A-weighted, referenced to 0 dB): 97.6 dB THD Plus Noise (with 1,000 Hz): at 0 dB, 0.02%; at -20 dB, 0.03% D/A Linearity (at -90 dB): +0.6 dB Interchannel Phase Error (at 20,000 Hz): 1.2 degrees

Quote: Eclipse Radio's equipt with onboard DSP controllers can benefit from the 39011 Digital Sound-Field Processor, transforms the mobile environment into an acoustical sound stage. It answers the question "Can I use an outboard D/A Converter with my Eclipse radio" Yes! The 39011 incorporates the highest level of processing technology around the most advanced Burr-Brown D/A Converts in the world. The ultimate in sound quality, accuracy, reproduction.

The 39011 DSP processor if flexible, with 2-Optical Digital inputs, 1-RCA Digital input, and 2-Stereo Analog inputs (Analog-1 Analog-2).

When connected to an A/V Theater environment (DV3101 DVD or 55090 DVD/Tuner, the 39011 accurately reproduces the ultimate mobile 5.1 theater sound. The ambience and quality of its original recording, are accuratly replayed within the vehicle, due inpart to the advent of the Eclipse Haas Processing algorithum. Features Exclusive ECLIPSE DSP circuitry using Haas effect delivers true 5.1 Channel sound to every seat simultaneously. The Digital Dynamic Range Compressor (DDRC) automatically adjusts sound levels at different frequencies for in-vehicle enjoyment. Sound alignment adjusts the sound stage to the specific interior size of your vehicle. Choose from multiple sound settings to optimize sound playback based on listener locations. A nine-band graphic equalizer adjusts sound characteristics separately for front and rear seats. The 39011 adjusts to different system configurations, sending different sound frequencies to speakers based on the number of speakers and their locations. A built-in 20-watt center channel amplifier simplifies the task of adding a center-channel speaker to your system.